44 SUB-HIMALAYAN ROCKS OF N. W. INDIA. [ClIAP. II. 



defined, shares its fate. Some obscurity is thrown upon the nature and 

 extent of this interruption of the fault, by the fact that the cutting 

 off of the Subathu group, to the south-east, coincides exactly with the 

 direction of this fault line. The extinction of the Subathu group 

 can be shown to be due to general easterly elevation and consequent 

 bevelment of its beds, and the coincidence just noticed suggests that 

 the similar upheavals to the north-east of this- line are interrupted 

 portions of the same phenomenon. However this may be, we find 

 that from below the confluence of the Palar, the hills on the left 

 of the Giri are composed of the Krol and Infra-Krol rocks, instead 

 of exclusively the great Infra-Blini series. The change is introduced 

 below the confluence of the Palar and Girl The Blini conglomerate 

 is found high on the summits over Railu, and Shengri ; more to the east, 

 in the same line, it is met with in the gorge north of Gailu, and in 

 the gap between Geruani and Juin. From Shengri to the Olong peak 

 the section is very similar to that between Keari and Tara Devi ; 

 schistose slates, graphitic, micaceous, or quartzose, alternate, with a 

 variable low northerly dip. On the north-north-west spur from Olong 

 they are capped by a considerable thickness of dark earthy lime- 

 stone. North of this spur, deep in the gorge of the Palar, we again find 

 the slates and grits nearly horizontal, and on the ascent to Chorna 

 the graphitic schists are repeated, but here they are surmounted 

 by hornblendic and felspathic strata, — possibly the earthy limestone 

 altered. North, of Chorna there is a band of coarsely crystalline, white 

 limestone. 



We can still follow up the Krol group with some certainty. The Giri, below its 



confluence with the Jalar, flows in a more easterly direction, 



Continuation of Krol group. ^ ^ a]ms an anticlinal, the Blini limestone showing 



itself at intervals. North of this part of the river we find, in the Juma ridge, the modified 

 continuation of the limestone range to the north-west. On Juma most of the Krol rocks can 

 be recognized, though greatly more contorted and obscured than at any point west of the 

 Giri • the limestone is often a white marble. To strengthen this identification we find the 

 Blini limestone again in the valley to the north of the ridge, under Koad. 



